Novel double-core parallel connection structure of main circuit of welding power supply

Abstract

The utility model discloses a main circuit of a welding power supply with a novel double-core parallel connection structure, and particularly relates to the technical field of welding power supplies, which comprises a negative electrode copper bar, a positive electrode copper bar is arranged on one side of the negative electrode copper bar, a negative electrode input port is fixedly mounted on the negative electrode copper bar, a positive electrode input port is fixedly mounted on the positive electrode copper bar, and a positive electrode input port is fixedly mounted on the positive electrode copper bar. The output ends of the cathode input port and the anode input port are respectively connected with a resonant inductor, the end part of the resonant inductor is connected with a capacitor, the connecting end of the capacitor is connected with a transformer, the rear sides of the cathode input port and the anode input port are provided with a fast recovery diode, and the fast recovery diode is provided with a copper bar assembly. By arranging the cathode input port, the anode input port, the resonant inductor and the like, the novel high-frequency filter is reasonable in structure, simple to produce and process, easy to assemble and maintain subsequently, and capable of improving the utilization rate of components.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding power supply technical field more specifically, the utility model relates to a kind of main circuit of welding power supply new structure for double machine core parallel connection. BACKGROUND

[0002] In the existing welding power supply machine core parallel connection technology, it is common that after three-phase rectification, DC electricity is divided into two paths and connected to the input end of IGBT module on both sides of the machine, then a soft-switching main circuit is formed with resonant inductance, capacitance, main transformer and fast recovery module, and finally the two paths of electricity are combined together through the connection of reactor, and then output through the reactor. This structure lengthens the wire distance and makes the structure messy. This not only wastes materials, but also destroys the neatness and aesthetics of the welding machine, and increases the manufacturing process of the welding machine, thereby increasing the manufacturing cost of the welding machine.

[0003] Common reactors are mainly strip-shaped, CD-shaped and ring-shaped, and the winding material is aluminum strip or copper strip. Once the shape of such a reactor is fixed, it is not easy to change, and there are certain limitations in production and use.

[0004] Therefore, there is an urgent need for a welding power supply main circuit with a new double-machine-core parallel connection structure to solve the above problems. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a welding power supply main circuit with a new double-machine-core parallel connection structure. By providing a negative input port, a positive input port and a resonant inductor, the structure of the present application is reasonable, the production and processing are simple, easy to assemble and maintain and repair, and the utilization rate of components is improved, thereby solving the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a welding power supply main circuit with a new double-machine-core parallel connection structure, comprising a negative copper bar, a positive copper bar is arranged on one side of the negative copper bar, a negative input port is fixedly installed on the negative copper bar, a positive input port is fixedly installed on the positive copper bar, a resonant inductor is connected to the output end of the negative input port and the positive input port, a capacitor is connected to the end of the resonant inductor, a transformer is connected to the capacitor, a fast recovery diode is arranged on the rear side of the negative input port and the positive input port, a copper bar assembly is installed on the fast recovery diode, a spacer copper nose is arranged at the bottom of the resonant inductor, a wax pipe copper wire is arranged on the spacer copper nose, a reactor is arranged on the wax pipe copper wire, a convex bracket is arranged at the bottom of the reactor, and a connecting copper nose is arranged at the end of the wax pipe copper wire.

[0007] In a preferred embodiment, the capacitor connection end is connected to the primary side of the transformer.

[0008] In a preferred embodiment, the primary side of the transformer is connected to the negative input port and the positive input port.

[0009] In a preferred embodiment, the wax pipe copper wire is wound on the electric reactor.

[0010] In a preferred embodiment, the electric reactor is fixedly installed on the convex bracket.

[0011] The technical effects and advantages of the present application are as follows:

[0012] The present application is provided with a negative input port and a positive input port, a resonant inductor and other structures, so that the present application has reasonable structure, simple production and processing, easy assembly, subsequent maintenance and repair, and improved utilization of components. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The present application is provided with a negative input port and a positive input port, a resonant inductor and other structures, so that the present application has reasonable structure, simple production and processing, easy assembly, subsequent maintenance and repair, and improved utilization of components.

[0014] Fig. 2 The present application is provided with a negative input port and a positive input port, a resonant inductor and other structures, so that the present application has reasonable structure, simple production and processing, easy assembly, subsequent maintenance and repair, and improved utilization of components.

[0015] The reference signs are: 1, negative copper bar; 2, positive copper bar; 3, capacitor; 4, resonant inductor; 5, copper bar assembly; 6, wax pipe copper wire; 7, interval copper nose; 8, connecting copper nose; 9, convex bracket; 10, positive input port; 11, negative input port. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] As shown in the accompanying drawings Figs. 1-2The utility model provides a kind of main circuit of welding power supply for double machine core parallel new structure, including negative pole copper bar 1, the negative pole copper bar 1 side is provided with positive pole copper bar 2, negative pole input port 11 is fixedly installed on the negative pole copper bar 1, positive pole input port 10 is fixedly installed on the positive pole copper bar 2, the output end of negative pole input port 11 and positive pole input port 10 is connected with resonant inductance 4 respectively, the end of resonant inductance 4 is connected with capacitor 3, the connecting end of capacitor 3 is connected with transformer, the rear side of negative pole input port 11 and positive pole input port 10 is provided with fast recovery diode, fast recovery diode is installed with copper bar assembly 5 on, resonant inductance 4 bottom is provided with interval copper nose 7, interval copper nose 7 is provided with wax pipe copper wire 6, the reactor is provided on wax pipe copper wire 6, the bottom of reactor is provided with convex bracket 9, the end of wax pipe copper wire 6 is provided with connecting copper nose 8.

[0018] The connecting end of capacitor 3 is connected with the primary side of transformer.

[0019] The primary side of transformer is connected with negative pole input port 11 and positive pole input port 10.

[0020] Wax pipe copper wire 6 is wound on reactor.

[0021] The reactor is fixedly installed on convex bracket 9.

[0022] Implementation specific is: when using the utility model, first, negative pole input port 11 and positive pole input port 10 are mounted on radiator in the mode shown in the drawing, and the input end of negative pole input port 11 and positive pole input port 10 is connected with positive pole copper bar 2 and negative pole copper bar 1 respectively, the output end of negative pole input port 11 and positive pole input port 10 is connected with one end of resonant inductance assembly 4 respectively, the other end of resonant inductance 4 is connected with capacitor 3, the other end of capacitor 3 is connected with the primary side of transformer, and the other end of the primary side of transformer is connected back to the output end of negative pole input port 11 and positive pole input port 10, so that a soft-switching main loop is formed, reactor 9 is installed on the bottom plate of welding machine, four fast recovery diodes are installed on radiator, and are connected two by two by copper bar assembly 5, the two ends of the secondary side of transformer are connected on copper bar assembly 5, are rectified through fast recovery diode, and are connected to the output positive pole of welding machine through radiator, and the other end of the secondary side of transformer is pressed with interval copper nose 7 and connected with reactor, and the other transformer is the same principle, finally, the output negative pole of welding machine is connected through connecting copper nose 8, and the whole output loop is completed, so that the utility model has reasonable structure, simple production and processing, easy assembly and subsequent maintenance and repair, and the utilization rate of components is improved.

[0023] The utility model working principle:

[0024] Refer to the description attached Figs. 1-2When the utility model is used, through the structure of negative input port 11 and positive input port 10 and resonant inductance 4 etc., the utility model has reasonable structure, simple production and processing, is easy to assemble and subsequent maintenance and maintenance, and improves the utilization rate of components.

[0025] Finally, a few points should be noted: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connected", "connected" should be broadly understood, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0026] Secondly: the utility model discloses the embodiment of the drawings, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0027] Finally: the above only for the preferred embodiment of the utility model has, and does not limit the utility model, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A new structure of main circuit of welding power supply with double parallel core, comprising a negative copper bar (1), characterized in that: The negative copper bar (1) one side is provided with positive copper bar (2), the negative copper bar (1) is fixedly installed with negative input port (11), the positive copper bar (2) is fixedly installed with positive input port (10), the negative input port (11) and positive input port (10) output end is connected with resonant inductor (4) respectively, the resonant inductor (4) end is connected with capacitor (3), the capacitor (3) connection end is connected with transformer, the negative input port (11) and positive input port (10) rear side is provided with fast recovery diode, the fast recovery diode is installed with copper bar assembly (5), the resonant inductor (4) bottom is provided with interval copper nose (7), the interval copper nose (7) is provided with wax pipe copper wire (6), the wax pipe copper wire (6) is provided with electric reactor, the electric reactor bottom is provided with convex bracket (9), the wax pipe copper wire (6) end is provided with connecting copper nose (8).

2. The main circuit of the welding power source with a new structure of parallel connection of two machine cores according to claim 1, characterized in that: The capacitor (3) connection end is connected with the primary side of the transformer.

3. The main circuit of the welding power source with double-cores parallel connection new structure according to claim 1, characterized in that: The primary side of the transformer is connected with the negative input port (11) and the positive input port (10).

4. The main circuit of the welding power source according to claim 1 is a new structure of double machine core parallel connection, characterized in that: The wax pipe copper wire (6) is wound on the electric reactor.

5. The main circuit of the welding power source with double-cores parallel connection new structure according to claim 1, characterized in that: The electric reactor is fixedly installed on the convex bracket (9).

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